Invalid pattern offset

[JoKalliauer]

https://commons.wikimedia.org/wiki/File:Subglacial_Eruption-numbers.svg

rsvg	resvg

The stone labeled with 6 are higher in rsvg than in resvg maybe nummeric issues? (don't know which one is correct)

PS same for https://commons.wikimedia.org/wiki/File:Submarine_Eruption-numbers.svg

Copyright

source https://commons.wikimedia.org/wiki/File:Subglacial_Eruption-numbers.svg

author Sémhur

license https://creativecommons.org/licenses/by-sa/4.0

[RazrFalcon]

Yes, the pattern is a bit off.

[neinseg]

I can confirm this. I'm running resvg v0.14.1. Several testcases are attached below.

When you flick between these testcases you will also notice that scale seems to be off as well.

Attached are three test cases:

• resvg output
• rsvg-convert output.
• output of gerbolyze/svg-flatten | resvg

gerbolyze is the svg-to-svg converter that I'm working on atm. It processes patterns down to individual <path>s.

Note that gerbolyze and rsvg-convert both agree very well, with resvg being the odd one out. BTW, while it may be legal by spec I think it would be great if resvg could try harder to produce less of a blurry mess for small patterns.

Here are the input SVG files (as zip to make github happy): resvg-testcases.zip

Testcase 1: pattern_fill.svg

resvg	rsvg-convert	gerbolyze+resvg

Testcase 2: pattern_stroke.svg

resvg	rsvg-convert	gerbolyze+resvg

Testcase 3: pattern_stroke_dashed.svg

resvg	rsvg-convert	gerbolyze+resvg

[RazrFalcon]

Yes, resvg doesn't like tiny patterns. Will see what I can do about it.

[RazrFalcon]

Duplicate of #628